CN210502904U

CN210502904U - Reinforcing part for cross beam of front floor of automobile

Info

Publication number: CN210502904U
Application number: CN201921582868.1U
Authority: CN
Inventors: 张桃; 赵健; 王猛; 熊建华; 程建勇; 董昊
Original assignee: Chongqing Branch of DFSK Motor Co Ltd
Current assignee: Chongqing Branch of DFSK Motor Co Ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-05-12
Anticipated expiration: 2029-09-23

Abstract

The utility model relates to the technical field of automobile manufacturing, in particular to a reinforcing piece for a beam of a front floor of an automobile, which comprises a body, a first side plate and a second side plate; the first side plate and the second side plate are respectively positioned on the first end surface and the third section end surface of the body; the body, the first side plate and the second side plate form an "Jiong" shape; the second end face and the fourth end face of the body are provided with extending edges along the direction opposite to the first side plate. The reinforcing part is welded to the longitudinal beam through the extending edge on the body, the first side plate, the second side plate and the boss protruding upwards from the body form a box-shaped cavity at the joint, the section area of the longitudinal beam is increased through the design, and the section bearing capacity of the position is improved. During side collision, the reinforcing piece, the front floor beam and the vehicle body right lower protection plate mounting plate are positioned on the same straight line, impact force can be well transmitted to the other side, deformation of the front floor beam at the junction is reduced to a certain extent, and a passenger compartment is protected.

Description

Reinforcing part for cross beam of front floor of automobile

Technical Field

The utility model relates to an automobile manufacturing technical field, concretely relates to floor crossbeam reinforcement before car.

Background

With the erection of expressways and flyways, the speed of cars is increasing, and the safety of drivers and passengers is more and more emphasized. The automobile front floor is used as an important part of an automobile body, is one of parts of an automobile and an important carrier of load, and has a framework with a force transmission function in collision, so that the automobile front floor is required to have good strength, rigidity and bearing capacity.

In the conventional front floor cross beam structure, as shown in fig. 1, a front floor longitudinal beam (2) and a reinforcement (3) are integrally arranged under a front floor (1) to form a sealed box-shaped structure with the front floor (1) for enhancing the overall mechanical performance of a lower vehicle body and enhancing the collision safety. However, in the traditional design, the reinforcing part (3) and the front floor longitudinal beam (2) are attached together, the section bearing capacity is insufficient, force is difficult to effectively transmit to the other side in the side impact process, the risk of side impact deformation of the front floor is increased, the side impact resistance is weak, and the safety of passengers in a passenger compartment is seriously threatened.

Disclosure of Invention

The utility model discloses to laminating mutually with preceding floor longeron at present reinforcement, section bearing capacity is not enough, and can't effectually transmit power when bumping the side, lead to the bottom plate to take place the side easily and bump the risk of deformation, provide a floor crossbeam reinforcement before the car.

In order to achieve the above purpose, the invention provides the following technical scheme:

a cross beam reinforcement for a front floor of an automobile comprises a body, a first side plate and a second side plate; the first side plate and the second side plate are respectively positioned on the first end surface and the third section end surface of the body; the body, first side panel and second side panel form an "Jiong" shape; the second end face and the fourth end face of the body are provided with extending edges along the direction opposite to the first side plate.

Preferably, the first side plate and the second side plate are circumferentially provided with three lugs. All be equipped with three journal stirrup on first curb plate and second curb plate, through journal stirrup and preceding floor crossbeam welding, just so can be better fix the reinforcement in the preceding floor crossbeam.

Preferably, the middle part of the body sinks along the direction of the first side plate to form a sinking platform. Through the design of the sinking platform, the reinforcing ribs are added at the sinking platform, so that the strength of the reinforcing piece can be increased.

Preferably, a first process hole is formed in the center of the sinking platform, and second process holes are formed in the first side plate and the second side plate. The front floor beam is coated through the first fabrication hole and the second fabrication hole, so that electrophoresis is uniform.

Preferably, positioning holes are symmetrically formed in two sides of the first fabrication hole. The positioning holes in the body correspond to the positioning holes in the front floor beam in the direction, so that the installation position of the reinforcing part is more accurate.

Preferably, the middle part of the extending edge is sunken along the direction of the first fabrication hole to form a groove; and reinforcing ribs are arranged at the grooves. On one hand, the middle part of the extending edge is sunken inwards, and reinforcing ribs are added at the sunken parts to increase the strength of the reinforcing part; on the other hand, set up the recess on extending the edge, conveniently put into preceding floor crossbeam with the reinforcement in, also conveniently discern the welding position simultaneously.

Preferably, the reinforcement of the cross member of the front floor of the automobile is integrally formed. The whole reinforcing piece is integrally formed, so that the strength of the reinforcing piece is stronger.

Compared with the prior art, the invention has the beneficial effects that: the reinforcing part is welded to the longitudinal beam through the extending edge on the body, the first side plate, the second side plate and the boss protruding upwards from the body form a box-shaped cavity at the joint, the section area of the longitudinal beam is increased through the design, and the section bearing capacity of the position is improved. During side collision, the reinforcing piece, the front floor beam and the vehicle body right lower protection plate mounting plate are positioned on the same straight line, impact force can be well transmitted to the other side, deformation of the front floor beam at the junction is reduced to a certain extent, and a passenger compartment is protected.

Description of the drawings:

FIG. 1 is a schematic structural view of a prior art pre-floor stringer;

FIG. 2 is a schematic structural view of a reinforcement provided herein;

FIG. 3 is a schematic structural view of a front floor stringer provided in accordance with the present application;

FIG. 4 is a cross-sectional view taken along the centerline of the stiffener in the direction X of FIG. 3;

fig. 5 is a cross-sectional view taken along the centerline of the stiffener in the direction Y of fig. 3.

The labels in the figure are: 1-front floor, 2-front floor longitudinal beam, 3-reinforcement, 31-body, 32-first side plate, 33-second side plate, 34-extending edge, 35-support lug, 36-sinking platform, 37-first fabrication hole, 38-second fabrication hole, 39-positioning hole, 40-groove, 41-reinforcing rib, 5-front floor cross beam and 6-vehicle body lower protection plate mounting plate.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

As shown in fig. 2, the present application provides an automotive front floor cross member reinforcement including a body 31, a first side plate 32, and a second side plate 33; the first side plate 32 and the second side plate 33 are respectively positioned on the first end surface and the third end surface of the body 31; the body 31, the first side plate 32 and the second side plate 33 form an "Jiong" shape. First curb plate 32 with the circumference of second curb plate 33 all is equipped with three journal stirrup 35, and the journal stirrup 35 on first curb plate 32 and the second curb plate 33 sets up back to back, makes things convenient for follow-up welding like this. In order to enhance the strength of the support lug 35, a reinforcing rib can be added at the bent part of each support lug 35 and the first side plate 32 and the second side plate 33, so as to enhance the strength of the support lug 35. The middle part of the body 31 sinks along the direction of the first side plate 32 to form a sinking platform 36; reinforcing ribs can be arranged at the sinking position of the sinking platform 36; the middle of the body 31 sinks downwards to enhance the strength of the body 31, and reinforcing ribs can be added at the sinking position, so that the sinking structure is stronger than a flat plate. A first fabrication hole 37 is formed in the center of the sinking platform 36, and second fabrication holes 38 are formed in the first side plate 32 and the second side plate 33; positioning holes 39 are symmetrically arranged on two sides of the first fabrication hole 37. The second end surface and the fourth end surface of the body 31 are provided with extending edges 34 in the opposite direction to the first side plate 32. The middle part of the extending edge 34 is recessed along the direction of the first fabrication hole 37 to form a groove 40; and reinforcing ribs 41 are arranged at the grooves 40. In order to increase the overall strength of the reinforcement 3, the entire reinforcement 3 is integrally formed by one plate.

As shown in fig. 3 to 5, for the structural schematic diagram of the reinforcement 3 provided by the present application after being mounted on the front floor side member 2, the reinforcement 3 is mounted at the intersection of the front floor side member 2 and the front floor cross member 5, the front floor cross member 5 is at the bottom, and the lower vehicle body fender mounting plate 6 is mounted on the front floor cross member 5, so that when a vehicle is subjected to a side impact force from the Y direction, since the reinforcement 3 is in a straight line with the front floor cross member 5 and the lower right vehicle body fender mounting plate 6, the impact force can be well transmitted to the other side, the deformation of the front floor side member 2 at the intersection is reduced to a certain extent, and the passenger compartment is protected.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A cross member reinforcement for a front floor of an automobile, comprising a body (31), a first side plate (32) and a second side plate (33); the first side plate (32) and the second side plate (33) are respectively positioned on the first end surface and the third end surface of the body (31); the body (31), first side panel (32) and second side panel (33) form an "Jiong" shape; and the second end surface and the fourth end surface of the body (31) are provided with extending edges (34) along the opposite direction of the first side plate (32).

2. The automotive front floor cross reinforcement of claim 1, characterized in that the first side plate (32) and the second side plate (33) are each provided with three lugs (35) in the circumferential direction.

3. The vehicle front floor cross member reinforcement according to claim 1, characterized in that a middle portion of the body (31) sinks in the direction of the first side plate (32) forming a sink deck (36).

4. The cross-member reinforcement for automobile front floor according to claim 3, wherein a first through-hole (37) is formed at the center of the sunken table (36), and a second through-hole (38) is formed at each of the first side plate (32) and the second side plate (33).

5. The cross-member reinforcement for automotive front floor according to claim 4, characterized in that the first tooling hole (37) is symmetrically provided with positioning holes (39) at both sides thereof.

6. The cross-member reinforcement for vehicle front floor according to claim 4, wherein a middle portion of the extension edge (34) is recessed in a direction of the first tooling hole (37) to form a groove (40); and reinforcing ribs (41) are arranged at the grooves (40).

7. The automobile front floor cross member reinforcement according to any one of claims 1 to 6, characterized in that the automobile front floor cross member reinforcement is integrally formed.